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Gabriel S. Tolkowsky (15 September 1939 – 28 May 2023) was a Belgian-Israeli diamond cutter, best known for cutting the Centenary Diamond. [1] He was the great nephew of Marcel Tolkowsky, father of the modern round brilliant diamond cut. [2] He is the sixth generation in his family to become well-known in the diamond cutting trade. [3] [4]
The first major development in diamond cutting came with the "Point Cut" during the later half of the 14th century: the Point Cut follows the natural shape of an octahedral rough diamond crystal, [2] eliminating some waste in the cutting process. Diamond cutting, as well as overall processing, is concentrated in a few cities around the world ...
These diamond saws and good jewelry lathes enabled the development of modern diamond cutting and diamond cuts, chief among them the round brilliant cut. In 1919, Marcel Tolkowsky analyzed this cut: his calculations took both brilliance (the amount of white light reflected) and fire into consideration, creating a delicate balance between the two ...
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Grounds crew at Wrigley Field smooths the infield dirt of a baseball diamond. A groundskeeper is a person who maintains landscaping, gardens or sporting venues (and their vegetation where appropriate) for appearance and functionality. In Britain the word groundsman (occasionally groundswoman if appropriate) or park-keeper is used much more ...
1968 – Power cutters A saw rebuilt to a power cutter in 1968 was the starting point of what today is the business area Husqvarna Construction. 1978 – Electrolux acquired Husqvarna. 1986 – The motorcycle division was sold to Cagiva. 1995 – Robotic lawn mowers The world's first solar powered robotic lawn mower was launched. Sales of ...
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